放到：子比主题–>>自定义CSS样式

        /*h1、h2、h3标题样式*/
.wp-posts-content>h1.wp-block-heading{
    position: relative;
    padding: 10px 12px;
    display: block;
    font-size: 20px;
    color: #6297FF;
    font-weight: bold;
    line-height: 26px;
    margin-bottom: 20px;
    background: url(https://img.alicdn.com/imgextra/i2/2210123621994/O1CN01Ga7VH11QbIjzNumln_!!2210123621994.png) no-repeat;
        background-size: 1000px 1000px;
    background-position: -5px -902px;
    
}
.wp-posts-content>h2.wp-block-heading{
    padding: 0px 0px 0px 19px !important;
    position: relative;
    padding: 10px 12px;
    display: block;
    font-size: 20px;
    color: #6297FF;
    font-weight: bold;
    line-height: 32px;
    margin-bottom: 20px;
    background: url(https://img.alicdn.com/imgextra/i2/2210123621994/O1CN01Ga7VH11QbIjzNumln_!!2210123621994.png) no-repeat;
    background-size: 1000px 999px;
    background-position: -3px -837px;
}
.wp-posts-content>h3.wp-block-heading{
    padding: 0px 0px 0px 45px!important;
    background: url(https://daixm.daixb.top/wp-content/uploads/2025/05/cat.svg) 10px center no-repeat;
    background-size: 30px 20px;
}
.wp-posts-content>h1.wp-block-heading:before{
    display:none;
}
.wp-posts-content>h2.wp-block-heading:before{
    display:none;
}
.wp-posts-content>h3.wp-block-heading:before{
    display:none;
}